R3 Performance Package for CL 600 (C215- 650 HP / 800 LB-FT) mercedes-benz-s-class--220---1999-2006--s-600-biturbo--2003-2006--esr5052819 RENNtech ECU Upgrade for 463

RENNtech ECU Upgrade for 463 - G 65 AMG

C217 - S63 AMG Coupe

the entire power and torque curve is shifted upward delivering +80 HP +101 LB-FT in the Mercedes-Benz M176 4

The 911 with the Slip-On Race system is noticeably more powerful

With the proprietary RENNtech ECU Tuning the W463 - G63 AMG gains up to +88 HP and +66 LB-FT (+75 WHP and +56 WTQ)

R3 Performance Package for CL 600 (C215- 650 HP / 800 LB-FT) mercedes-benz-s-class--220---1999-2006--s-600-biturbo--2003-2006--esr5052819 RENNtech ECU Upgrade for 463R3 Performance Package for 215 CL 600. Includes ECU Upgrade, TCU Upgrade, High Efficiency Intercooler Pump, RT 3pc. Carbon Fiber Air Box, 100% Locking DIfferential and Transmission Upgrade. Up to 650HP and 800 LB FT. Gains: +157HP & +210 LB FT The R3 performance package is the ultimate performance upgrade for your 600 series Mercedes! Our package 3 includes everything found in our performance package 2 plus our higher efficiency intercooler pump kit